6GH8A to 7199 Tube Socket Adapter Single 6GH8A to 7199 tube socket adapter. Simply plug these adapters into a socket that is pined-out for a 7199 tube and insert a 6GH8A tube into the adapter. This is intended to make an easy transition to the inexpensive 6GH8A tube as a direct plug-in adapter to replace the now expensive and hard to find 7199 tube. This will work for any tube amp that uses the 7199 tube. Same width dimensions as the tube, so they fit in shielded sockets nicely.7199converter$32.95

6GH8A to 7199 Tube Socket Adapter Pair Pair of 6GH8A to 7199 tube socket adapters. Simply plug these adapters into a socket that is pined-out for a 7199 tube and insert a 6GH8A tube into the adapter. This is intended to make an easy transition to the inexpensive 6GH8A tube as a direct plug-in adapter to replace the now expensive and hard to find 7199 tube. This will work for any tube amp that uses the 7199 tube. Same width dimensions as the tube, so they fit in shielded sockets nicely.7199converterpair$59.95

10K Linear 2W Military Sealed Potentiometer PEC Canada10K Linear 2 Watt Sealed Military Potentiometer. Manufactured by PEC in Canada. Pots are 1-1/16" in Diameter. The perfect premium bias potentiometer! This is an extremely High Quality Potentiometer, that will outlast any non-sealed Pot!!PEC10KL$29.95

Bias Repair Set for Mark 3Replaces selenium bias rectifier with silicon diode,
also includes resistors & capacitors used in bias circuit
that are not on the printed circuit board. Parts Included: 1K 2W Resistor, 18K 2W Resistor, .022uF 630V Capacitor, 100uF 100V Capacitors x 2pcs, & 1N4007 Diode. Some of these parts are also included in the Dual Bias Kit on this page.One set required per amplifierbiaskitmk3$7.95

Dual Bias Kit for Dynaco Mk3/Mk2 Amplifiers with Triode Electronics upgradeThis allows for biasing each 6550/KT88/EL34 tube
individually rather than as a pair, note that a hole
must be drilled for an additional bias control to use this. Parts Included: 1K 2W Resistor, 18K 2W Resistor, 47uF 100V Capacitors x 2pcs, 25KL Potentiometers x 2pcs, & 1N4007 Diode.
Kit includes parts that are in the regular Bias Repair kit as well.This kit works only with our board. One kit required per amplifierdualbias$12.95

15ohm 2W Piher Carbon Film Resistor 15ohm 2W Carbon Film Resistor. Made by Piher in Spain. Great replacement for Original ST70 Biaset resistors to keep the 1.56V biaset. Note, these are sold in a quantity of one so if you are using them for a ST70 you will need to order two of them.15ohm2wcf$1.15

Plastic Chassis Mount 7 Pin SocketMounts from bottom of chassis. Standard NOS US issue for mounting in a 5/8 inch hole. NOS USA manufacture. You can combine this item with the 7 pin shield to make a 7 pin shielded socket.7pinchpls$1.95